 /*******************************************************************************
  * Copyright (c) 2003, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.views.properties;

 import org.eclipse.jface.viewers.LabelProvider;

 /**
  * An <code>ILabelProvider</code> that assists in rendering labels for
  * <code>ComboBoxPropertyDescriptors</code>. The label for a given
  * <code>Integer</code> value is the <code>String</code> at the value in
  * the provided values array.
  *
  * @since 3.0
  */
 public class ComboBoxLabelProvider extends LabelProvider {

     /**
      * The array of String labels.
      */
     private String [] values;

     /**
      * @param values the possible label values that this
      * <code>ILabelProvider</code> may return.
      */
     public ComboBoxLabelProvider(String [] values) {
         this.values = values;
     }

     /**
      * @return the possible label values that this
      * <code>ILabelProvider</code> may return.
      */
     public String [] getValues() {
         return values;
     }

     /**
      * @param values the possible label values that this
      * <code>ILabelProvider</code> may return.
      */
     public void setValues(String [] values) {
         this.values = values;
     }

     /**
      * Returns the <code>String</code> that maps to the given
      * <code>Integer</code> offset in the values array.
      *
      * @param element an <code>Integer</code> object whose value is a valid
      * location within the values array of the receiver
      * @return a <code>String</code> from the provided values array, or the
      * empty <code>String</code>
      * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
      */
     public String getText(Object element) {
         if (element == null) {
             return ""; //$NON-NLS-1$
 }

         if (element instanceof Integer ) {
             int index = ((Integer ) element).intValue();
             if (index >= 0 && index < values.length) {
                 return values[index];
             } else {
                 return ""; //$NON-NLS-1$
 }
         }

         return ""; //$NON-NLS-1$
 }
 }

